The best quality obsidian
is mined in the southern part of Ayacucho department. Facetable, dark grey to almost black to brown obsidian
. The black variety is translucent in thin splitters, the brown is more opaque. Both colours are often mixed on one piece and both have a very high lustre when polished. Some stones have attractive oscillating thin black layers in a pale smoky matrix.
Ref: J.Hyrsl (2012) Gemstones of Peru, pp. 55, 86
Gem list contains entries from all listed localities in region.
Localities in this Region